A very distinctive tunicate, this colony of Grape Tunicates (xycorynia fascicularis)appears very much as a cluster of dark green grapes on the end of long stalks.
These are one of the main sources of food for Nembrotha chamberlaini and Nembrotha lineolata.
Image taken at the Mapating Rock dive site off the coast of Anilao in the Batangas area of The Philippines.